sobre o Google

Enhanced searching with Firefox
Now Google’s faster than ever on Firefox and Mozilla browsers. When you do a search on these browsers, we instruct them to download your top search result in advance, so if you click on it, you’ll get to that page even more quickly.
You can learn more about this cool feature here. If you’re a webmaster, we have FAQs for you too. Or you can just download Firefox and check it out for yourself.